Paul says: "This is a lovely way to eat fresh fish... Fish can be quite tricky to cook on a barbecue as it sticks really easily. So to remove any fear I'm cooking the mackerel on a foil tray. Just treat it like a frying pan. If you're feeling brave however, just brush the fish with a little oil and make sure the bars of the barbecue are really clean".

English mustard powder is a seasoning and cooking condiment made from ground mustard seeds, turmeric and flour. It has a strong, sharp taste that is pungent rather than hot. You can also buy it ready prepared as a paste in a jar. I use English mustard to flavour salad dressings, marinades, basting sauces and any time a little oomph is required. It’s a multi-purpose Pantry Pal.